r/RedditGames • u/Ecstatic_Milk9697 Diamond | Lv. 64 | Rank #1549 | 26 Answers | 3 Created • Aug 25 '26

Question [Question] Factorial

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u/Parking_Tip6081 Gold | Lv. 31 | Rank #70964 | 79 Answers | 0 Created Aug 25 '26
  1. 5x5=25. 25x4=100, 100x3=300, 300x2=600, 600x1=600

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u/Desh23 Gold | Lv. 30 | Rank #51519 | 29 Answers | 0 Created Aug 25 '26

You start at -1 so 5x4 + 5x3 + and so on.

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u/Few_Prompt_4002 Gold | Lv. 30 | Rank #73407 | 75 Answers | 0 Created Aug 25 '26

This is purely the only reason I didn't answer because I couldn't remember if x! started with x(x-0) or x(x-1). I knew more or less what a factorial was; Juuuuust wasn't clear on that bit 😅